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Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 0082d1e56999..be8c3a680afa 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5100,7 +5100,12 @@ targets for exploits that can control RIP. emulate [default] Vsyscalls turn into traps and are - emulated reasonably safely. + emulated reasonably safely. The vsyscall + page is readable. + + xonly Vsyscalls turn into traps and are + emulated reasonably safely. The vsyscall + page is not readable. none Vsyscalls don't work at all. This makes them quite hard to use for exploits but |